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Finding the Fourth Proportional to 203,045.31, 280,072.56 and 162,855.54

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Solution

The fourth proportional to 203,045.31, 280,072.56 and 162,855.54 is: 224,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,045.31 : 280,072.56 = 162,855.54 : x
  2. Step 2: Convert to fraction form
    203,045.31/280,072.56 = 162,855.54/x
  3. Step 3: Cross multiply
    203,045.31x = 280,072.56 × 162,855.54
  4. Step 4: Simplify right side
    203,045.31x = 45,611,367,997.98
  5. Step 5: Solve for x
    x = 45,611,367,997.98/203,045.31
  6. Step 6: Final answer
    x = 224,636.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.